6 min read · original guide

Your first hour with a Build Kit

Mock fixtures, then a server-only key, then a human check.

Start from an outcome

Pick a kit such as First typed decision. Copy the builder prompt for the tool you actually use. The copy action pastes instructions; it does not install Jev or run anything.

Mock before live

If you do not have a TypeSafe key, the mock path is the real deliverable. A UI that pretends live results is a bug.

Check the SDK, not this page, for API names

Prompts tell agents to read https://github.com/typesafe-ai/typesafe-sdk-js. If this site and the README disagree, the README wins.

Back to the library